Truck-bolster.



PATENTED JUNE 14. 1904 P. R. GORNWALL.

4TRUCK HOLSTER.

APPLICATION FILED IAB. 19. 1904.

N0 MODEL.

m Y yp digg@ Patented .Tune 14, 1904.

UNITED STATES PATENT OFFICE.

FREDERICK R. CORNWALL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO CHI- CAGO RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION OFV ILLINOIS.

TRUCK-BOLSTER.

SPECIFICATION forming part of Letters Patent No. 762,386, dated June 14, 1904. Application tiled March 19, 1904. Serial No. 198,927. (No model.)

To /LZZ whom t may concern:

Be it known that I, FREDERICK R. CORN- WALI., a citizen of the United States, residing at St. Louis, Missouri, have inventedacertain new and useful Improvement in Truck-Bolsters, of which the following is aV full, clear, and exact description, such as will enable others skilled in .the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is afragmentary view of a bolster, partly in elevation and partly in section, constructed in accordance with my invention. Fig. 2 is a fragmentary top plan view illustrating the spring-seat casting at the end of the bolster. Fig. 3 is a fragmentary elevational view illustrating the end casting of the bolster. Fig. 4 is amdivided sectional view on the line 4 4 of Fig. 2. Fig. 5 is a detail perspective view of one of the filler-blocks, and Fig. 6 is a fragmentary perspective View of one end of the compression member of the bolster. This invention relates to a new and useful improvement in truck-bolsters, the object being to simplify and producean inexpensive truck-bolster which is durable and strong.

vWith these objects yin view the invention consists in the construction, arrangement, and combination of the several parts, all as will be hereinafter described and afterward pointedout in the claims.

In the Vdrawings I have show n the Ycompression member as being in the form of a commercially-rolled channel having -its end bent up so as to lie in a plane parallel to the tension member, notches 2 being formed in the depending lianges 4 and which notches lie in 40 approximately the transverse plane of the bend in the end of the compression member. The flanges between thenotches and the ends of the compression member are folded inwardly, as shown at Fig. 6, for tlievpurpose of increasing the thickness of the webl of the compression memberat 'its ends, 4said double thickness of web and flanges being rounded,

as shown in Fig. 1, to aord a seat for the tension member 5, which is bent therearound. The inwardly bent or folded fianges are indicated at 3, and between these iangos is interposed a filler-block 6 (shown in Fig. 5) for wellunderstood purposes. The reference-numeral 7 designates a strut for spacing the intermediate portions of the compression and tension members.

The flanges 4 adjacent the folded -in portions at the ends of the compression member are cut away, so as to accommodate the tension member, which tension member is preferably of a width corresponding to the width of. the channel.

Instead of notching the iange of the channel and cutting away the channel adjacent the notch to accommodate the tension member the flanges of the compression member can be bent inwardly at the vends without notching, the construction in all respects being similar to that shown inthe drawings, except that the curl of the flangeswillpr'ovide seats for the 7G tension member. The ends of 'the flat plate tension member are bent up, as "at 8, around the ends of the thickened web of the compression member, said bent ends being held in position by rivets 11. 9 is a casting on the ends of the bolster, and each casting is provided with an inclined portion 10, snugly resting against the under side of the tension member and secured thereto by said rivets or other fastening devices 11 and 12. 30

Upwardly-projecting fianges 13 are formed on the casting, which rest against the flanges 4 of the compression member and are secured thereto by suitable rivets or other fastening devices 14. The spring-seats 15 are connected 35 to the inclined portions of the casting by the vertical webs 16, on which the column-guides 1.7 are formed.

I am aware that minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

l. A bolster comprising a channel compression member having portions of its side flanges bent against the web, a tension member having its ends bearing against the bent flanges and upon the web, and a strut; substantially as described.

2. A bolster comprising a channel compression member having the end portions of its flanges bent against the web of the channel, a tension member having its engaging ends bent up`over the ends of the compression member, and a strut; substantially as described.

3. In a car-bolster, the combination with a channel compression member whose langes are folded inwardly7 against the web and the ends of the bolster, said folded flanges and web portion being rounded, a strut, and a tension member bent around the rounded ends of the web and flanges; substantially as described.

4. In a bolster, a channel compression member, a tension member on which the channelllanges rest, and means for engaging the ends of the compression member and tension' memJ ber; substantially as described.

5. A bolster comprising a channel compression member having notched flanges, portions of which are bent under the web, a tension member engaging' the flanges on both sides of the notches, means for fastening the ends of the two members together, and a strut; sub* stantially as described.

6. A bolster comprising a channel compression member having notched ilanges, portions of which are bent under the web, a filler-block, curved ends conforming' to the bent engaging portions of the tension member, a tension member engaging the flanges on both sides of the notches, means for fastening the ends of the two members together, and a strut; substantially as described.

In testimony whereof I hereunto afliX my signature, in the presence of two witnesses, this 17 th day of March, 1904.

f FREDERICK R. CORNVVALL.

Yitnessesz RALPH KALISH, GEORGE BAKEWELL. 

